Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – At least one aryl ring which is part of a fused or bridged...
Patent
1998-06-02
2000-03-14
Niland, Patrick D.
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
At least one aryl ring which is part of a fused or bridged...
524591, 525123, 525125, 525131, 528 49, C08J 300, C08K 320, C08L 7500, C08F 830, C08G 1808
Patent
active
060374047
ABSTRACT:
This invention relates to a composition, and to the preparation and use of thereof said composition being suitable as a rheology influencer for coating media and comprising the reaction product formed by reaction of a mixture of components A, B and C with components D, E and F. Components A, B and C form a mixture wherein component A is one or more (meth)acrylic copolymers and/or one or more polyesters which contain hydroxyl groups. Component B is a copolymer of ethylhexyl (meth)acrylate and one or more hydroxyalkyl (meth)acrylates, as well as .alpha.,.beta.-unsaturated monomers which are different therefrom. Component C is a hydroxy--functional microdispersion which is produced by polymerizing hydroxylalkyl (meth)acrylates in combination with unsaturated monomers in a mixture of polyesters or polyacrylates containing carboxyl and/or hydroxyl groups. Component D is one or more aliphatic polyisocyantes and component E is .epsilon.-caprolactam. The caprolactam partially blocks the polyisocyanate. The component F is one or more primary amines. These ingredients are combined in certain specified amounts. The invention also relates to coating media and to the production of these coating media, which contain said composition as a rheology influencer.
REFERENCES:
patent: 3371056 (1968-02-01), Delius
patent: 4540734 (1985-09-01), Short et al.
patent: 5391620 (1995-02-01), Bederke et al.
Aug. 1998, European Search Report.
Dahm Ralf
Flosbach Carmen
Kerber Hermann
Kirchgassler Sandra
Lerch Dieter
Herberts Gesellschaft mit beschrankter Haftung
Niland Patrick D.
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